Spinning-machine.



A. AVERY.

SPINNING MACHINE.

APPLICATION FILED NOV. 12, 1913.

1 168 287, Patented Jan. 11, 1916.

2 SHEETSSHEET 1.

Fig.1.

Witnesses. ln ventor.

f- Amanah Avery Y?@a zd W&W

Patented Jan. 11, 1916.

2 SHEETS-SHEET 2-- Inventor. Amuriuh Aver Atty's.

UNTTD @TATEEd PATENT @FFEQE. V

AMARIAH AVERY, MANCHESTER, NEW HAMPSHIRE, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO DRAPER COMPANY, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

SPINNING-MACHINE.

Specification of Letters Patent.

Application filed November 12, 1913. Serial No. 800,653.

To' all whom it may concern:

Be it known that I, AMARIAH AVERY, a citizen of the United States, residing at Manchester, county of Hillsboro, State of New Hampshire, have invented an Improvement in Spinning-Machines, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to improvements in step mechanisms for spinning machines and the bobbin in the path of the feeler finger the replenishment mechanism will not be operated. \Vhen, however, the yarn is unwound so that the feeler finger will enter the recess or slot the replenishment mechanism will be operated to substitute a new bobbin for the exhausted one. In machines of this type the feeler finger is ordinarily placed in such position that it will enter the slot nearer the end farthest removed from the base of the bobbin and it is therefore desirable that the bobbin should'be so wound that when unwound in the shuttle the portion of the slot into which the feeler finger enters will be exposed and the replenishment mechanism operated while a sufficient amount of am remains upon the bobbin to supply a pick of filling, thus obviating any likelihood of a short end of rilling being laid or a mispick made which would result in a defect in the fabric.

One of the objects of the present inven tion is to provide a quick and accurate stop mechanism for spinning machines, upon which such bobbins are wound, which will arrest the machine with the lifter rail elevated so that when new bobbins are supplied they will be in position to receive. the filling at the bottom and wind the same upwardly upon the barrel over the feeler slot; so that when the bobbin is unwound in the shuttle the outer end of the feeler slot will be first uncovered in the manner aforesaid.

Another'object of this invention is to provide means whereby the operation of the stop mechanism will cause the disengagement of the means for actuating the stop mechanism and thereby restore said actuating mechanism to its normal position.

Other objects of the invention will be more fully set forth in the accompanying description and drawings and the following claims.

In the drawings: Figure 1 is a front elevation of a portion of a cap spinning machine embodying my invention; Fig. 2 is an end elevation of a portion of such machine showing the stop mechanism and a portion of the means for actuating the same, the spinning mechanism being omitted; Fig. 3 is a detail elevation of a portion of the lever mechanism for operating the stop mecha nism; Fig. 4 is a detail view of the belt shifting mechanism forming part of the stop mechanism, and Fig. 5 shows a boboin having a feeler slot showing the first winding thereupon.

The spinning machine embodying this invention comprises end frames 1 and suitable cross beams 2 to form supports forthe spin ning mechanism. The bobbins 3 are guided upon a series of spindles 4 which are suitably secured in a horizontal spindle rail and project through a lifter rail 5, the bobbins resting upon whirls 6 which in turn rest on the lifter rail and are rotated'by belts 7 passing around said whirls and over driving mechanism of the usual form. Caps 8 are supported upon the upper ends of the spindles 4 and the bobbins are raised and lowered relative to said caps by elevating and depressing the lifter rail in the usual manner. The up and down or traversing movement given to the lifter rail winds the successive layers of filling upon the bobbin building the same from the base of the bob bin or cop toward its apex or nose.

In the machine illustrated herein two sets of spinning mechanism are provided, one at the front and the other at the rear of the frame, and the lifter rails are raised and lowered by heart-shaped cams located near opposite ends of a suitably driven shaft jour- Patented Jan. it, 1916.

I end an adjustable pivot 16Jupon which an oscillating arm 17 is mounted, thearm' 17;

nected, in any suitable manner, not shown, to the lifter rail by chains 11 passing over suitable pulleys 12-43, to the ends of the lifter rods 14, which support the lifter rail.

The forward and backward movement vof the carriage causes the lifter rods and consequently the lifter rails to be raised and lowered in the desired manner.- v The means provided for reciprocating the carriage to cause an upwardly and downwardly traversing movement comprises a frame 15 projecting downwardlyfIOnr-the' frame of the machine having at its. lower being provided at its other end with'means engaging the carriage and intermediate-of its ends and upon the side opposite-to the carriage with an adjustable member 18,.pro-

vided with an antifriction roller 19 which engages an arm 20, which is actuated a heart-shaped cam 21 suitably driven in any desirable manner. The lever 20 is 'adjustably supported at its upper end; upon a pivot 22 mounted in a slot 23 and is provided with an antifriction roll 2i which afiords a rolling contact between the cam 21 and the lever. The motion transmitted through the heart-shaped cam to the lever 17- by the mechanism above describedis adapted to give the carriage a backward and forward movement of substantially uniform amplitude.

In order to provide for the progressive downward movement of the lifter rail to properly build a filling wind upon the bob-3' bin, means are provided whereby the. car-1 riage is advanced slightly (to the right in 4 the usual drawing rolls, not shown, doWn-' the mechanism illustrated) upon each reciprocation, thus progressively lowering the lifter rail and consequently raising the path of the filling upon the bobbin. This is accomplished in the present machine by a screw 30 which engages a nut or collar. 31 carried upon the upperjend of the arm 17 and which may be secured thereto in any suitable manner. The screw- 30 is rotatably connected at one end with a lug 34 upon the carriage and at its other end slidably feathered in a bearing sleeve'35 of oneof a train of gears adapted to rotate the" same.

In operation the filling yarn is led from Wardly beneath the cap 8 to near thebase of the bobbins. The mechanism is then set in motion and the yarn is first wound .aroundthe barrel of each-bobbin near its. base, and as the carriage moves forward is caused to wind up on the barrels of the is wound at which time the lifter rail will be in its'lowest position. \Vhen the bobbins have been completely filled the machine is stopped in order that they may be dofi'cd and 1t isdesirable that the mechanism should be so arrested that when the carriage is returned manually to starting position (at the left) the lifter rail will be at the highest point of its traverse so that the filling winding will again commence at the *base of the bobbin barrel and wind upwardly-in the manner aforesaid. Inorder to accomplish this result it is necessary that the mechanism be arrested when the apex of the heart-shaped cam is in contact with the antifriction roll 24 of the carriage actuating lever 20, and in the preferred embodiment of the invention illustrated herein means are provided which are set in operation by the carriage when at the extreme right, and the lifter rail at the lowermost point of 1ts traverse, said means being .adapted to complete their operation and arrest the carriage at the end of its traverse to the leftywhen the lifter rail is at its highest point of traverse.

In the preferred embodiment of the invention disclosed herein the stop mechanism comprises a screw actuated belt shipper which is adapted to shift the belt from the driving pulley of the spinning mechanism to a loose or idle pulley, rotation being imparted to the screw for this purpose by the falling of a weight, the support for which is withdrawn by thecarriage when the lifter rail reaches a certain predetermined position.

In Fig. 4 of the drawings a fast pulley 40 for driving the spinning mechanism and a loose or idle pulley 41 on the'same shaft are shown. the driving belt 42 being adapted to be shifted from one to the other by a forked shipper 43 mounted upon the ends of a rotatable shaft. 44. The shaft 41 is journaled in suitable hearings in the frame, not shown, one or both of which are provided with screw threads engaging similar threads upon the shaft 44. The shaft ll is adapted to be rotated manually by a hand wheel 45 or automatically in a manner hereinafter to be described. Obviously rotation of the shaft in one dlrection will cause the screw to move the rod axially to hift the amass belt from the fast to the loose pulley to stop the machine, while rotation in the opposite direction will cause it to shift the belt from the loose to the fast pulley to start the machine. By the mechanism disclosed herein the starting and stopping of the machine may be performed manually at any time without interference with the automatic stop mechanism;

- The automatic stop mechanism comprises a gear 46 rigidly mounted upon the shaft 44, which engages a companion gear 47 mounted upon a shaft 48 upon which a drum 49 is mounted, said drum having an attached chain 50 which after passing around the drum 49 and over an idle directing roller 51 supports the upper end of a depending bar 52 to the lower end of which is secured a heavy weight 53 by a link 54, or in any other suitable manner. A guide 55 which is secured to the frame embraces the bar 52 and controls it when the weight is dropped. The bar 52 is provided near its lower end with a shoulder 56 which is adapted to engage a latch 57 which preferably rests upon said guide and serves to support saidbar and weight while the spinning mechanism is in operation. To stop the machine the latch 57 is withdrawn from engagement with the shoulder 56 permitting the weight 53 to fall, thus causing the rotation of the drum 49 through the chain 50 and the consequent rotation of the shaft 44 which by its simultaneous endwise movement moves the belt shipper from the fast to the loose pulley. V I

The latch 57 is slidably mounted at one end preferably upon the guide 55 and at its other end upon a bracket 58 which depends from the frame and may be provided with a shouldered portion 59 engaged by a spring 60 to force the end of the latch into engagement with the bar 52. The latch 57 is retracted to release the weight through a bell crank lever actuated by the movement of the carriage 10 when the same reaches the predetermined pointv of advancement aforesaid. This bell crank lever comprises a shaft 61, journaled in a suitable bracket 62 carried by the frame and arms 63-64- disposed at substantially right angles to each other. The arm 64 is slotted near its end to engage a stud 65 projecting from a collar 66 carried by the latch bar 57. The other arm 63 of the bell crank lever is loosely connected by a bolt or pin to' one end of a draw bar 67 adapted to be actuated by the carriage. The draw bar 67 extends longitudinallv of the machine and has an offset 68 which permits its extension 69 to be journaled in a bracket 70 carried by the carriage 10. .The extension 69 of the draw bar is provided with two collars 7273 which are preferably adjustably secured thereto by set screws and with a sliding collar 74 loosely mounted between the fixed collars 72-73. By reason of the adjustability of these collars the stop mechanism may be operated to arrest the machine with the lifter rail in any desired position, but they are preferably arranged to stop the machine with the lifter rail at the highest point of its traverse, as above described. The sliding collar 74 is adapted to be ongagedby the shoulder 75 of a spring detent 76 whlch is secured to the bracket 7 0 upon the carriage 10. The fixed collars 7273 are slabbed off at the top to permit the detent to pass over without engagement therewith.

In the operation of the spinning mechanism the carriage 10 is first brought manually to its extreme retracted position (at the left in the machine illustrated herein) at which time the lifter rail is in its most elevated position. The spinning mechanism is then started and the carriage 1O reciprocated as above described, being at the same time advanced by the screw 30 as the bobbin is being built. During the progress of' advancement of the carriage the detent will pass over the collar 72 and strike the sliding collar 74 which it will force against the fixed collar 73 and upon further advancement will ride over the same so that the shoulder 75 of the detent will engage the farther side thereof. Then upon the back ward reciprocation of the carriage the sliding collar will be moved along the extension 69 of the draw bar until it abuts against the fixed collar 72 and upon further movement of the carriage the draw bar will be retracted, the bell crank lever (6364) rocked, and the latch 57 withdrawn, thus releasing the weight and thereby causing the shipping of the driving belt from the fast1 to the loose pulley in the manner aforesai It will be observed that the engagement of the detent 76 with the collar 74 occurs when the carriage is at the extreme right and the lifter rail at its lowest point of traverse but that by reason of the lost motion duev to the sliding of the collar 74 upon the draw bar the stop mechanism is not actuated until the carriage 10 has nearly reached the opposite limit (to the left) of its reciprocation so that when the parts are arrested the lifter rail is in its highest position of traverse and the apex of the heart-shaped cam 21 in contact with the antifriction roller 24 of the operating lever 20. The bobbins are then dofi'ed and the carriage ready to be shifted to its initial position to start the winding of a new set of bobbins. In order, however, that the carriage may be retracted to starting position it is necessary that the shoulder 75 of the detent be released from engagement with the collar 74, and it is desirable that means shall be provided whereby these parts will be automatically disengaged immediately upon the actuation oppositely disposed winged nuts 8687 a.

depending rod 88 which terminates in an eye 89 which embraces the draw bar 67 adj acent to the offset 68. The draw bar 67 and its extension 69 are substantially parallel but by reason of the offset 68 the bearings for the ends of these respective members are in difl'erent vertical planes so that when the rod 88 raisesthe ortion of the draw bar adjacent to the 0 set the extension 69 near the offset will be depressed. It therefore follows that when the weight is dropped the stud 83 will engage the depres-v sion 82 of the lever 80, depressing that end of said lever and consequently raising the opposite end 86 and its depending rod 88 thus depressing the draw bar extension 69 and releasing the shoulder 75 of the detent from engagement with the collar 74 and permitting the carriage 10 to be restored to its starting position.

It is to be understood that" the apparatus herein described comprises one embodiment of my invention, but that it is illustrative merely and that my invention may also beembodied in other forms of apparatus and also that its application is not restricted to its use in connection with spinning machines. It is also to be understood that the stop mechanism embodying my invention not only comprises means whereby the machine may be arrested with the lifter rail at its highest point of traverse, which has been described as the preferred position, but

that said means are capable of such adjust-' ment as to arrest the machine with the lifter rail at any predetermined elevation which may be found to be desirable. For example, if bobbins are being wound which are to be used upon exceptionally wide looms, it may be found that a single winding from the base of the bobbin upward over a portion of the feeler slot will not be suflicient for a pick. In such case the collar 72 maybe adjusted along the extension 69 of the draw bar 1n such a manner as to actuate the stop mechanism when the lifter rail is artially elevated so that when the new bo bin is wound a partial traverse of winding will be wound downwardly before the'first full upward traverse is laid. It therefore follows that when, the bobbin is unwound in the shuttle the feeler finger of the loom will enter the slot in the bobbin and institute the operation of the replenishing mechanism while there are two partial windings upon the bobbin which is ample to supply a pick for an exceptionally wide loom. Having fully described my invention, what I claim as new and desire to secure by Letters Patent is:

- 1. In a spinning machine having a series of bobbin spindles, means for rotating the bobbins thereon, a lifter railand means for actuating the same including builder mechanism for causing a traverse of yarn upon the bobbin, stop mechanism comprising means automatically" operable during the downward movement of the traverse of the yarn upon the bobbin to stop the machine to retain said lifter rail at a predetermined point of the traverse of the yarn upon the bobbin well below the highest point of traverse and means for restoring the builder mechanism to starting position without altering the position of traverse whereby the first full layer offilling laid upon thebobbin will be wound from the bottom upwardly.

- 2. In a spinning machine having a series of bobbin spindles, means for rotating the bobbinsthereon, a lifter rail and means for actuating the same including builder mechanism for causing the traverse of yarn upon the bobbin, stop mechanism comprising adjustable In'ean'sautomatically operable during the downward movement of the traverse of theyarn upon the bobbin to stop the machine to retain said-lifter rail at a predetermined, point of the traverse of the yarn upon the bobbin below the highest point of traverse .and 'means for restoring the builder mechanism to starting position without altering the position of traverse whereby the first full layer of filling laid upon the bobbinwill be 'wound from the bottom upwardly. 5 3. In a spinningmachine having a lifter rail, a series of bobbins mounted thereon, means for rotating the bobbins, builder mechanism for actuating said lifter rail, stop mechanism comprising means automatically operable to stop the machine to retain said lifter rail at the lowest point of traverse of the yarn upon the bobbin, means for restoring the builder mechanism to starting-position without altering its position of traverse, wherebv the first layer of filling laid upon the bobbin will be wound from the bobbin upwardly.

A spinning machine having a series of bobbin spindles, a'lifterrail and means for actuating the same including traverse constop the machine with the lifter rail at a point intermediate of the limits of traverse of the yarn upon the bobbin and means for restoring the lifter rail actuating mechanism to starting position without altering the position of the rail in respect to the point of traverse upon the bobbin at which it is arrested.

5. In a spinning machine having a series of bobbin spindles, means for rotating bobbins thereon, a lifter rail and means for actu ating the same, stop mechanism operated by the traverse controlling mechanism to stop said actuating mechanism to retain said lifter rail at a predetermined elevation comprising a weight actuated belt shifting mechanism. a latch adapted to support said weight and to release the same to actuate said belt shifting mechanism, a draw bar provided with a collar connected to said latch, a detent carried by said traverse controlling mechanism adapted to engage said collar to release said latch from engagement with said weight, whereby upon the descent of the weight the belt will be shifted from a tight to a lodse pulley and means actuated by the falling weight to release said detent.

(i. In a spinning machine having a series of bobbin spindles. means for rotating bobv bins thereon. a lifter rail and means for actuating the same, stop mechanism operated by the traverse controlling mechanism to stop said actuating mechanism to retain said lifter rail at a predetermined elevation comprising a weight actuated belt shifting mechanism, a latch adapted to support said weight and to release the same to actuate said belt shifting mechanism, a draw bar having a collar adapted to have a restricted sliding movement connected to said latch. a detent carried by said traverse controlling mechanism adapted to engage said collar to rel ase said latch from engagement with said weight, and means operated by said belt shifting mechanism to disengage said detent from said collar.

7. In a machine of the class described, stop mechanism releasing and actuating means comprising a draw bar having an adjustable collar adapted to be engaged by a moving member of said machine at a predetermined time in the cycle of operation thereof. whereby the machine may be arrested with the elements thereof in predetermined relative position and means to release said member automatically upon the initiation of the operation of the stop mechanism.

8. In a machine of the class described stop mechanism releasing and actuating means comprising a draw bar having an ofi'set portion, provided with means adapted to be engaged by a moving member of said machine at a predetermined time in the operation thereof, means connected to said draw bar adjacent to said offset adapted to be actuated by the operation of said releasing means to raise the main portion of said draw bar and thereby lower the offset portion thereof, whereby the latter will be released from its engagement with said moving member.

9. In a spinning machine having a series of bobbin spindles, means for rotating the bobbins thereon, a lifter rail, means for actuating the same including a builder arm, a carriage actuated thereby and means connecting said carriage to said lifter rail, a screw connecting said builder arm and said carriage, means for rotating the screw progressively upon each reciprocation of the builder arm, a detent upon said carriage, stop mechanism including a latch having a member extending substantially parallel to said screw, a collar upon said latch adapted to be engaged by said detent to release the stop mechanism at the highest point of traverse on said lifter rail and means actuated by said stop mechanism to release the detent from the collar upon said latch.

10. In a spinning machine having a series of bobbin spindles, means for rotating the bobbins thereon, a lifter rail, builder mechanism for operating the same comprising a lever. a carriage connected to said lifter rail and a screw connecting said builder lever with said carriage, means for actuating said screw progressively to vary the position of the traverse, a cam adapted to actuate said lever. and stop mechanism automatically operable by an instrumentality upon the said carriage to arrest the machine and to retain the same in arrested position at a predetermined point of contact between said cam and said builder lever whereby the lifter rail will be positioned at a point below the highest point of traverse of the yarn upon the bobbin, and means for returning the builder mechanism to initial position without varying the position of the cam relative to the builder lever.

11. In a spinning machine having a lifter rail, a series of bobbins mounted thereon, means for rotating the bobbins. caps for said bobbins, builder mechanism for operating the same comprising a lever, a carriage connected to said lifter rail and a screw connecting said builder lever with said carriage, means for actuating said screw progressively to vary the position of the traverse, a cam adapted to actuate said lever and stop mechanism automatically operable by a pawl upon said carriage to arrest the machine with and means for returning the builder mechanism to initial position without vary- 5 ing the position of the cam relative 'to the v builder lever. y

In testimony whereof, I have signed my name to this specification in the presence of two SHbSCI'IbIIIg WItHGSSBS.

AMARIAH AVERY. Witnesses: i

DANA A. EMERY, R. W. HILLES. 

